Abstract:
:The recently identified cell adhesion regulator (CAR) modulates the process of integrin-mediated cell adhesion. The CAR gene is located on 16q, a locus at which high levels of allelic losses have been demonstrated in advanced human hepatocellular carcinoma (HCC). We studied the possible involvement of the CAR gene in the progression of HCC. With this aim, we determined the expression of CAR mRNA in 30 cases of HCC. Matching pair samples of tumor and adjacent nontumoral liver were analyzed by semiquantitative reverse transcriptase-polymerase chain reaction (RT-PCR). The results were compared with the clinicopathological features of the patients. Every nontumoral liver tissue sample analyzed, expressed CAR mRNA. All tumor samples showed amounts of expression that were equal or lower, compared with those found in their matching controls. Thus, in 16 out of 30 cases (53.3%), CAR mRNA expression in tumor was diminished to less than one tenth of that observed in nontumoral tissue. This group of patients exhibited higher amounts of alpha-fetoprotein, and comprised tumors with poor histological differentiation (Edmondson-Steinert's grades III-IV), higher rates of intrahepatic metastasis and recurrence within the first postoperative year (p < 0.05, respectively). Tumors exhibiting low levels of CAR mRNA were also found to be diagnosed at more advanced TNM stages (p < 0.01). We conclude that downregulation of CAR mRNA expression may play an essential role in the progression of HCC.
journal_name
Int J Cancerjournal_title
International journal of cancerauthors
Yamamoto H,Itoh F,Sakamoto H,Nakajima Y,Une Y,Hinoda Y,Imai Kdoi
10.1002/(sici)1097-0215(19970620)74:3<251::aid-ijcsubject
Has Abstractpub_date
1997-06-20 00:00:00pages
251-4issue
3eissn
0020-7136issn
1097-0215pii
10.1002/(SICI)1097-0215(19970620)74:3<251::AID-IJCjournal_volume
74pub_type
杂志文章abstract::Molecular characterization has been extensively studied in serrated polyps but very little is known in serrated adenocarcinomas (SACs). We analyzed the incidence of KRAS, BRAF and PIK3CA mutations, microsatellite instability (MSI) status and loss of the DNA repair proteins MLH1, MSH2, MSH6 and MGMT in a series of 89 S...
journal_title:International journal of cancer
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journal_title:International journal of cancer
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journal_title:International journal of cancer
pub_type: 杂志文章
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更新日期:2018-04-01 00:00:00
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更新日期:2020-08-01 00:00:00
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journal_title:International journal of cancer
pub_type: 杂志文章
doi:
更新日期:2000-11-01 00:00:00
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journal_title:International journal of cancer
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doi:10.1002/ijc.2910560519
更新日期:1994-03-01 00:00:00
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journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910640409
更新日期:1995-08-22 00:00:00
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journal_title:International journal of cancer
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journal_title:International journal of cancer
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doi:10.1002/ijc.20145
更新日期:2004-07-01 00:00:00
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journal_title:International journal of cancer
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journal_title:International journal of cancer
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journal_title:International journal of cancer
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doi:10.1002/ijc.2910550623
更新日期:1993-12-02 00:00:00
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journal_title:International journal of cancer
pub_type: 杂志文章
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更新日期:1989-10-15 00:00:00
abstract::Meibomian gland carcinoma (MGC) and basal cell carcinoma (BCC) are common eyelid carcinomas that exhibit highly dissimilar degrees of proliferation and prognoses. We address here the question of the differential mechanisms between these two eyelid cancers that explain their different outcome. A total of 102 confirmed ...
journal_title:International journal of cancer
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更新日期:2016-03-15 00:00:00
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journal_title:International journal of cancer
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更新日期:2011-10-01 00:00:00
abstract::MEK1/2 inhibitors like U0126 can potentiate or antagonize the antitumor activity of cytotoxic agents such as cisplatin, paclitaxel or vinblastine, depending on the drug or the target cells. We now investigated whether U0126, differentially regulates melanoma signaling in response to UV radiation or betulinic acid, a d...
journal_title:International journal of cancer
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更新日期:2006-03-01 00:00:00
abstract::Non-small-cell lung cancers (NSCLC) are often infiltrated by T lymphocytes. It is postulated that the presence of tumor-infiltrating lymphocytes (TIL) reflects a local host immune response against autologous tumors. To identify the nature of NSCLC TIL, we have characterized the molecular structure of the TCRbeta chain...
journal_title:International journal of cancer
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journal_title:International journal of cancer
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abstract::Leukemic stem cells (LSC) might be the source for leukemic disease self-renewal and account for disease relapse after treatment, which makes them a critical target for further therapeutic options. We investigated the role of cytotoxic T-lymphocytes (CTL) counteracting and recognizing LSC. Leukemia-associated antigens ...
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更新日期:2015-11-01 00:00:00